شرح علوم الصف الأول الاعدادى ترم ثانى النجم الساطع أحمد حمدى

   ... More

    ١0114061115 – 0176654057     *‫اﻵن‬ ‫ﺣﺘﻰ‬ ‫اﻟﻤﻌﺮوﻓﺔ‬ ‫اﻟﻌﻨﺎﺻﺮ‬ ‫ﻋﺪد‬ ‫ﻳﺒﻠﻎ‬١١٢‫ﻓﻠﺰات‬ ‫وﻻ‬ ‫ﻓﻠﺰات‬ ‫إﻟﻰ‬ ‫ﺗﺼﻨﻴﻔﻬﺎ‬ ‫ﻳﻤﻜﻦ‬ ‫ﻋﻨﺼﺮا‬                  23Na1124Mg12 27Al13                         Less